What is the name of this film??

[TeethingBabyHelp]

Please help me Mumsnet!
I have a vague memory of a film that I watched years ago. It's an old film and it's centred around a woman who is married in a rut but meets a man on a train and feels like she has a passionate feeling for him but I THINK nothing actually happens with him?

I've made it sound quite dull I think 😂 if anybody knows what film this is please let me know, it's driving me mad

Sliding doors?!

Brief encounter?

Brief Encounter?

Is it falling in love? Meryl streep and Robert de niro?

Brief Encounter?

Brief encounter.

Was it a train station rather than a train and was it a very old black and white film? If so it sounds like Brief Encounter

Brief Encounter!! Thank you @TenaKween and @myidentitymycrisis
I keep meaning to rewatch and couldn't remember the name when I actually have the house to myself to do so in peace ! Thank you

Ooo more replies while I was typing. Thank you everyone, it's definitely brief encounter was thinking of